:root {
  --bg: #fff;
  --fg: #202124;
  --muted: #5f6368;
  --line: #dadce0;
  --brand: #1a73e8;
  --brand-ink: #fff;
  --danger: #d93025;
  --ok: #188038;
  --card: #f8f9fa;
  --logo-h: 40px;
  --overlay: 0.35;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #202124;
    --fg: #e8eaed;
    --muted: #9aa0a6;
    --line: #3c4043;
    --card: #292a2d;
  }
}
:root[data-theme="dark"] {
  --bg: #202124;
  --fg: #e8eaed;
  --muted: #9aa0a6;
  --line: #3c4043;
  --card: #292a2d;
  color-scheme: dark;
}
:root[data-theme="light"] {
  color-scheme: light;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
}
a {
  color: var(--brand);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
input,
textarea,
button {
  font: inherit;
  color: inherit;
}
input,
textarea {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 14px;
  width: 100%;
}
button {
  background: var(--brand);
  color: var(--brand-ink, #fff);
  border: 0;
  border-radius: 8px;
  padding: 10px 18px;
  cursor: pointer;
}
button:disabled {
  opacity: 0.5;
  cursor: default;
}
button.danger {
  background: var(--danger);
}
button.link {
  background: none;
  color: var(--muted);
  padding: 0;
}
.home {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.home main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}
.logo {
  font-size: clamp(2.5rem, 10vw, 4.5rem);
  margin: 0;
  letter-spacing: -0.03em;
  color: var(--brand);
}
.logo.small {
  font-size: 1.6rem;
}
.tagline {
  color: var(--muted);
  margin: 0.25rem 0 1.5rem;
}
.searchbox {
  display: flex;
  gap: 8px;
  width: 100%;
  max-width: 620px;
}
.searchbox input {
  border-radius: 999px;
  padding: 12px 20px;
  flex: 1;
}
.searchbox button {
  border-radius: 999px;
}
.popular {
  color: var(--muted);
  margin-top: 1.5rem;
}
.popular a {
  margin: 0 6px;
}
footer {
  padding: 16px;
  text-align: center;
  color: var(--muted);
  font-size: 0.875rem;
}
.topbar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.topbar .searchbox {
  max-width: 600px;
}
.results {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 24px 48px;
}
.meta,
.muted {
  color: var(--muted);
  font-size: 0.875rem;
}
.hit {
  margin: 24px 0;
}
.hit .url {
  color: var(--muted);
  font-size: 0.85rem;
}
.hit h2 {
  font-size: 1.2rem;
  margin: 2px 0;
}
.hit p {
  margin: 4px 0;
  color: var(--muted);
}
mark {
  background: none;
  color: var(--fg);
  font-weight: 600;
}
.pager {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: center;
  margin-top: 32px;
}
.error {
  color: var(--danger);
}
.ok {
  color: var(--ok);
}
/* admin */
.admin {
  display: flex;
  min-height: 100vh;
}
.admin aside {
  width: 220px;
  background: var(--card);
  border-right: 1px solid var(--line);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.admin .brand {
  font-weight: 700;
}
.admin nav.admin-language {
  display: flex;
  flex: 0 0 auto;
  flex-direction: row;
  align-items: center;
  gap: 4px;
  width: fit-content;
}
.admin nav.admin-language a {
  padding: 3px 7px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.8rem;
}
.admin nav.admin-language a.on {
  background: var(--line);
  color: var(--fg);
  font-weight: 600;
}
.home > .admin-language {
  position: absolute;
  top: 16px;
  right: 20px;
}
.admin-customizer {
  position: relative;
}
.admin-customizer summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.9rem;
}
.admin-customizer-panel {
  display: grid;
  gap: 10px;
  margin-top: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
}
.admin-customizer-panel label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 0.8rem;
}
.admin-customizer-panel select,
.admin-customizer-panel input[type="color"] {
  width: 100%;
}
.admin-customizer-panel input[type="color"] {
  height: 36px;
  padding: 3px;
}
.customizer-label {
  color: var(--muted);
  font-size: 0.8rem;
}
.admin-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.admin-swatch {
  width: 24px;
  height: 24px;
  padding: 0;
  border: 2px solid var(--bg);
  outline: 1px solid var(--line);
  border-radius: 50%;
  background: var(--swatch);
}
.admin-swatch:hover,
.admin-swatch:focus-visible {
  outline: 2px solid var(--fg);
}
.admin nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.admin nav a {
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--fg);
}
.admin nav a.on,
.admin nav a:hover {
  background: var(--line);
  text-decoration: none;
}
.content {
  flex: 1;
  padding: 24px 32px;
  min-width: 0;
  overflow-x: auto;
}
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}
.card b {
  display: block;
  font-size: 1.8rem;
}
.card span {
  color: var(--muted);
  font-size: 0.875rem;
}
.bars {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  height: 140px;
  padding: 8px 0;
}
.bar {
  flex: 1;
  max-width: 60px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  position: relative;
}
.bar i {
  display: block;
  width: 100%;
  background: var(--brand);
  border-radius: 4px 4px 0 0;
  min-height: 2px;
}
.bar small {
  color: var(--muted);
}
.bar em {
  font-style: normal;
  font-size: 0.75rem;
  position: absolute;
  top: 0;
}
.two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
}
th,
td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
  vertical-align: top;
}
.row {
  display: flex;
  gap: 8px;
  margin: 12px 0;
}
.row input[type="number"] {
  width: 100px;
}
.stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 520px;
  width: 100%;
}
.stack label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.9rem;
  color: var(--muted);
}
.actions {
  display: flex;
  gap: 6px;
}
.actions form {
  margin: 0;
}
.tag {
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--line);
  font-size: 0.8rem;
}
.tag.run {
  background: #fbbc04;
  color: #000;
}
.tag.error {
  background: var(--danger);
  color: #fff;
}
.danger-zone {
  margin-top: 32px;
}
.login {
  max-width: 340px;
  width: 100%;
}
@media (max-width: 700px) {
  .admin {
    flex-direction: column;
  }
  .admin aside {
    width: auto;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .admin nav {
    flex-direction: row;
    flex-wrap: wrap;
  }
}
/* v3 */
.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}
.login.wide {
  max-width: 520px;
  text-align: left;
}
.login h1 {
  font-size: 1.4rem;
}
.block {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 4px 16px 14px;
  margin: 14px 0;
  max-width: 720px;
}
pre {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  overflow-x: auto;
  margin: 8px 0;
}
code {
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 0.85rem;
}
.flashmsg {
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
}
.flashmsg.ok {
  border-color: var(--ok);
}
.flashmsg.error {
  border-color: var(--danger);
}
.tag.ok {
  background: var(--ok);
  color: #fff;
}
.mini {
  width: 80px;
  padding: 6px 8px;
}
a.card {
  color: inherit;
  text-decoration: none;
}
/* v4: gợi ý từ khóa */
.searchbox {
  position: relative;
}
.suggest {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 20;
  margin: 0;
  padding: 6px;
  list-style: none;
  text-align: left;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
}
.suggest li {
  padding: 9px 12px;
  border-radius: 8px;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.suggest li.on,
.suggest li:hover {
  background: var(--card);
}
.suggest li.page {
  color: var(--muted);
}
.suggest li.page::before {
  content: "↗ ";
  opacity: 0.6;
}
.suggest li.kw::before {
  content: "⌕ ";
  opacity: 0.6;
}
.cf-turnstile {
  min-height: 65px;
}
select {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  color: inherit;
  font: inherit;
}
/* v5 */
.row.wrap {
  flex-wrap: wrap;
}
form.inline {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  margin: 0;
}
.mini2 {
  width: 150px;
  padding: 6px 8px;
}
.perms {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 6px;
}
.check {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  font-size: 0.9rem;
  color: var(--fg);
}
.check input {
  width: auto;
  margin-top: 4px;
}
.check.off {
  opacity: 0.45;
}
th {
  white-space: nowrap;
}

/* v6: logo, theme, nền, ngôn ngữ */
.logo-link {
  color: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.logo-link:hover {
  text-decoration: none;
}
.logo-img {
  height: calc(var(--logo-h) * 1.8);
  width: auto;
  max-width: 100%;
  object-fit: contain;
}
.logo.small .logo-img,
.topbar .logo-img {
  height: var(--logo-h);
}
.logo-name {
  color: var(--brand);
}
.theme-toggle {
  background: none;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 10px;
  margin-left: 6px;
}
.lang-switch a[aria-current] {
  font-weight: 700;
  color: var(--fg);
}
footer .lang-switch {
  white-space: nowrap;
}
.has-bg {
  min-height: 100vh;
}
body.bg-aurora {
  background: linear-gradient(
      135deg,
      color-mix(in srgb, var(--brand) 38%, var(--bg)),
      var(--bg) 55%,
      color-mix(in srgb, #7c4dff 28%, var(--bg))
    )
    fixed;
}
body.bg-sunset {
  background: linear-gradient(
      160deg,
      color-mix(in srgb, #ff7043 35%, var(--bg)),
      var(--bg) 55%,
      color-mix(in srgb, #e91e63 28%, var(--bg))
    )
    fixed;
}
body.bg-ocean {
  background: linear-gradient(
      160deg,
      color-mix(in srgb, #0288d1 38%, var(--bg)),
      var(--bg) 60%,
      color-mix(in srgb, #00bfa5 25%, var(--bg))
    )
    fixed;
}
body.bg-forest {
  background: linear-gradient(
      160deg,
      color-mix(in srgb, #2e7d32 38%, var(--bg)),
      var(--bg) 60%,
      color-mix(in srgb, #9ccc65 22%, var(--bg))
    )
    fixed;
}
body.bg-mono {
  background: linear-gradient(
      160deg,
      color-mix(in srgb, var(--fg) 12%, var(--bg)),
      var(--bg)
    )
    fixed;
}
body.bg-image {
  background: var(--bg-image) center/cover no-repeat fixed;
}
body.bg-image::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--bg);
  opacity: var(--overlay);
  pointer-events: none;
}
body.has-bg .results,
body.has-bg main.login,
body.has-bg .topbar {
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(8px);
}
body.has-bg .results {
  border-radius: 16px;
  margin-top: 16px;
  margin-bottom: 16px;
}
body.has-bg main.login {
  border-radius: 16px;
  flex: 0 1 auto;
  margin: auto;
  padding: 28px;
}
body.has-bg.home main.login {
  flex: 0 1 auto;
}
body.has-bg footer {
  color: var(--fg);
}
/* trang Giao diện (admin) */
.swatches {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.swatch {
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
  color: var(--fg);
}
.swatch input {
  width: auto;
}
.swatch i {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: inline-block;
}
.swatch i.rainbow {
  background: conic-gradient(red, yellow, lime, cyan, blue, magenta, red);
}
.colorin {
  width: 80px;
  height: 40px;
  padding: 2px;
}
.preview {
  max-height: 90px;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: repeating-conic-gradient(#ccc 0 25%, #fff 0 50%) 0 0/16px 16px;
}
.preview.background {
  max-height: 140px;
}
.stack.wide {
  max-width: 640px;
}
.result-favicon {
  width: 16px;
  height: 16px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: 2px;
}